Automatic machine for manufacturing lower parts of press-studs.



A. PRYM. AUTOMATIG MACHINE FOR MANUPAGTUEING BOWEB, PARTS OF PRESS STUDS.

APPLIGATION FILED JAN. 16, 1907. 921,1 0, Patented May 11, 1909. 7 BHEETS-SHEET 1.

f Wig/1 A. PBYM. AUTOMATIG MACHINE FOR MANUFACTURING LOWER PARTS OF PRESS STUDS.

APPLIOATIGF FILED JAN. 16. 1907.

Patented May 11, 1909.

7 SHEET8-SHBET 2.

A. PRYM. AUTOMATIC MAGHINB FOR MANUFACTURING LDWEB. PARTS or PRESS STUDS.

APPLICATION TILED JAU.16.190T.

Patented May 11, 1909.

7 SHBBTS-SHEBT a.

A. PRYM. AUTOMATIG MACHINE FOR MANUFACTURING LOWER PARTS OF PRESS STUDS.

APPLICATION FILED JAN. 15, 1907.

Patented May 11, 1909.

7 SHEETS-SHEET 4.

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A. PRYM. AUTOMATIC MACHINE FOR. MANUFACTURING LOWER PARTS OI P113138 STUDS.

APPLIOATION FILED JANJG. 1907.

Patented May 11, 1909.

7 SHEETS-SHEET 5.

A. PRYM. AUTOMATIC MACHINE FOR MANUFACTURING LOWER PARTS OF PRESS STUDS. APPLIOATIOK 111 120 JANJB, 1907.

921 160. Patented my 11, 1909.

'( SHEETS-SHEET 6.

.0 gig. I i I l l l I l S t 1 I 1 I I 1 I e i I A. PRYM.

AUTOMATIC MAGHINE FOR MANUFACTURING LOWER PARTS OF PBEQS STUDS.

APPLIUATION PILEIJ JAN. 16. 1907.

921,160. Patented May 11, 1909 7 SHEETS-SHEET 7 UNITED STATES PATENT OFFICE.

AUGUST PRYM, OF STOLBERG, GERMANY.

AUTOMATIC MACHINE FOR MANUFACTURING LOWER PARTS OF PRESS-STUDS.

Specifica ion of Letters Patent. Patented May 1 1, 1909. Serial No. 352,548.

Application filed January 16, 1907.

To all whom it may concern: 1 is a vertical section on line E--l of the Fig. Be it known that I, Amns'r Porn, 9. sub 1., Fig. 9 is a. fragmentary section on line ject of the King of Prus ia, G r n Em- (i ll of the Fig. 1, 1* ig. 10 is a plan view of peror, and resident of Stolberg, in the Prov the l) ig. 9, l igs. 11, 12, 13, 14 rep esent sue lncc of the Rhine, German Em ire, have in-- cessive phases in the bending of the spring,

l ig. 15 1s a vertical section of the lower part vented certain new and use 'ul Improve 4 ments in Automatic Machines for lllenufm of the pressed button after the insertion o the crescent spring has taken place. Mg. 16

l l l l turlng Lower Ports of .lrcss Studs, of which i l l is a plan view according to llg. 15.

l l l it may he pointed out thut the arrangethe following is an exact specification.

My invention has for its object improvement serving for forming the socket part as iilustmted in the Big. 15 end the devices ments in automatic machines for menufnw serving for finishing the lower part as illusturing lower parts of nose studs or pressed buttons, more especially the combination oi treted in the big. 15 does not form part of the present invention. This arrangement is a'rotating table or conveyor disk with an autometic device for bending a. wire so as to inr l illustrated and described in a co-pcnding ap- Shape and to deliver or convey the bent wire 3 plicntion filed together with the present one. to the said eonveyer disk. This device or the w g g 1 and 2} 1 is ammt' tool is adopted for bending the wire thus to s liable wnveyer 2 i5 11 Vertical? form a crescent-shaped spring with two inner arranged shaft mounted in the machine tab. e twice-bent shanks, the said table h ing an 3 and fixedly connected with the said con-- tached thereto this bending device. The iinveyer disk. 4 is a. ratchet wheel and 5 a ishcd or bent s rin is automatically con i pawl cooperating with said ratchet wheel. v y d mm the iienfing tool itself to the m 5 is a. rod pivotelly connected with the part to the latter 0. particular and convenient toting table and inserted into the socket of l. pawl 5 and operated by the lover T, which is the lower part of the pressed button carried loosely mounted on the shaft 2 and is proby the conveyor disk, inn condition of mm vided with a slot in which the pivot 8 is losion. It may he mentioned that it was hercl ca ted eutomet-- i 9 and 10 designate a. double ermod lever l lunged to the Ina-chine frame port 3 and lower arm 9 engaging with the rod toforc known to produce the spring lcally, end to give it the crescent shape, but it has not yet been perceived how very imgortant it was when pressed buttons were to e made in greet uentities to convey the finished spring on or tension to an autoinetic machine provided with the rotating table or conveyor disk and to insert directly the bent spring into the socket of the lower part of the pressed button in a state of tem sion, so as to give the letter an absolutely sccure position 111 the button. The ending tool, its construction and nr- In order to make my invention more clear, rangcmcnt will now he described. I refer to the accompanying drawings, in l '17 is a slide recessed on its light-hand. end

. having its 6, and its arm 1!} bearing against the com 1 1. The com 11 is mounted on the shaft- 12 driven by means of the bevel wheels 12 and the helt pulley 1.3 nwuntcd on the sheik, 14.

1.3 are elastic tongs rovided in the rote-t ing tehle 1 and adapted to receive the socket 113 oi the lower part of the pressed Hutton (sec Fi l5}.

which: i (see Figs. 9 and l0) end having a project on Figure l is a. sectional plan view of the l or nose l8 (sec F 1g. 4). 201s a second slide having the aforementioned .slide 17 superosed and being provided with a half-chew ar recess 21 at its ri hthand end. (See Figs. 9 and 10.) On the cfthand side of the slide 20 or projection or nose 21 (see Figs. 3 and 4) arranged having an inclined face 22. 23 is e cam ring secured by means of screws 24 (Fig. 5) or the like to the disk 25 which is mounted with its hub 26 on the shaft 12. 27 against which the left- 20 abuts and which is 2. is a. vertical crosssection on line A looking from the lefthand side in Fig. 1. i i 3 is a vertical crosssection on line A I? o the Fig. 1, the view 1 taken to the lcfthand side. Fig. 4 is a frogi mentery sectional plan view of the bending 1s tool, Flg. 5 is a section on line 0 D of the Fig. 4, hi 6 is a. detail section pertaining to Fig. 5, on inc I--K of the latter. Fl 7 rep resents a. diagram whole machine, Flgi);

which illustrates t e nnml 1s a second cam rin ner or operating of the bending tool. Fig. 8 hand end of the sh e .The rod 45 is provided with a projection 46 secured to the disk 25 by means of screws 28 or the like.

29 is a segmental rim having a right-angled upper edge 30 (Fig. 6), the face 31 of which cooperates with the inclined face 22 of the slide 20. The art 29 is attached to the disk 25 by means oFnuts 32. i

is a spring secured with its one end to the machine frame 3 and with its other end to the slide 17 (Fig. 4).

34 and 35 desi nate a double-armed lever pivotally secure to the machine table by means of the pivots 36 (see Figs. 3 and 4).

37 is a hammer-like tool or hammer secured to the righthand end of the arm 35 pro-- vided with a flattened part 37*.

38 is a spring) connected with both the arms 34 which ear with their outer ends upon segmental rims 39, which are provided. with inclined faces for actuating at suitable times the arms 34. The segmental rims are secured by means of screws 40 to the disk 2.

41 is a knife and 42 is a block serving as an abutment for the wire.43.

44 is an arm carryin the knife 41 and semixed to the slide or ro 45, suitabl mounted on the machine frame, and not furt or shown.

havin a risin face 47.

48 Fig. 5) 1s a circularly curved led e or to ue, which operates the rod an the kni e 41.

49 (Fig. 6) is a curved angle hook the part 50 of which cooperateswith the rising face 47 of the pro'ection 46. The part i9 is attached tgghefis 25 by means of the nut 50* (see i 6 51 (Figw 1) are several rollers which are suitably mounted in the machine frame anddriven, and which serve for intermittently feeding the wire 43. This arrangement does not form art of my invention and therefore is only i mmatically illustrated.

52, 53 a two pairs of rods or pins (see Figa'l, 12 and Fig. 3) mounted in the mapins are all secured.

chine table and 54 is a bearing to which the The bea ,54 is so cured by means of scrcw-bolts 55 to the lever 56, the projection or nose 5? of which bears against the cam disk 58 mounted on the shaft 59, driven .by means of the bevel wheels 60 and the belt ulley 13. The lever 56 is pivotally secured by means of the pivot 61 to the machineframe, (see Fig. 1).

62 is a rod provided at rapper end with a crescent part 63 (Figs. 1 an 13'). The latter is adapted to enter between the pins 52, 53. The rod 62 passes through the opening in the middle of the bearing 54 and 18 conseated at its lower end with the forked lever 64 (see Figs. 1 and 3) by means of the bolts 65. The ever 64 is connected with the red 65 pivotaily mounted in the machine frame and provided with an upwardly projecting arm 66, the upper end of which bears against the cam disk 67. The latter is carried by the shaft 12.

68 is a helical spring attached with its one end to the lever 56 and with its other end to the hook 69 screwed into the machine table. The 3 ring 70 is secured to the hooked bolt 65 wit i its one end, and to the machine table with its other end (not shown).

As will be seen from the Figs. 1 and 3, the pins 52, .53 and the crescent part 63 of the rod 62 are adapted to enter into the recesses 71 and 21 of the superposed slides 17 and 20 respectively.

72 is a guiding piece rovided with a conical inner opening an connecting with a spreading peg 73. (Fig. 8.)

The operatlonof the machine is as follows The wire 43 is intermittently fed for a certain length by means of the rollers 51 and passes in. the recess 71 between the su erposed slides 17 and 20 (see Fi 1). he slide 20 and the knife 41 are a vanced by means of the cam ring 27 and the part 48 res ectively (Figs. 5 and 6). This operation is iagrammatically illustrated in the Fig. 7 wherein 27 designates the rim developed an 48 the developed curved segment. It will be seen therefrom that the knife is advanced from 0 to 15 degrees, whereby the wire 43 is cut oii to suitable length. After the wire is cut 0d the slide 20 moves forward alone in correspondence with a rotating arc of 30 de recs. At the same time the pins 52 occupy t ieir lifted position (see Fig. 3) and the cut of? wire is bent in the form as shown in Fig. 11. From 30 to 90 degrees the doublearmed levers 34, 35 are influenced by the cam pieces 39, as will be seen from the curve 39 in the Fig. 7, which curve designates the development of thecurved cam pieces 39.

During this rotation of thecam pieces 39 the hammers}? approach each other and enter with their flattened parts 37 between the pins 52, 53 which are situated within the re cesses of the slides 17 and 20. Then the hammers depart one from the other. The wire is bent in the she e as illustrated in the Fi 12. During the urther rotation of the dis 25 the hammers 37 and the knife 41 remain at rest till one revolution of the disk 25 is completed. From 90 to IOO'degrees, as will be seen from the Fi 7, the slide 20 is advanced farther, where the wire is bent in the form as illustrated in the Fig. 13. this case the crescent part 63 cooperates with the half-circular iecess 21 of the slide 20. During the revolution from 0 to 100 degrees the slide 17 is at rest, as to e seen from the curve 23, which denotes the develo pment of the cam ring 23. From 100 to a 120 do rees the slide 17 moves backward and the sli e 20 is at rest, whereby a shape is imparted to the wire, as illustrated in the Fig. 14. In order to enable the slide 17 to be iii ' of rhc Fig. Pi, dev l ped, From LZUU to 25o withdrawn by the spring 33, the pins 52, 53 l and the crescent art 63 are lowered due to the interference of the cam 58 with the nose 57 and the arm 66 with. the cam 67 respectively (Fi .3). i

The wit drnwnl of the pins 52 takes place alter the revolution ol" the disk .25 from 30 to 90 dtgl'ros is completed, the withdrawal of the crescent port 63 takes place while the disk 25 rotates from 124) to 13!) degrees. At the some time the slides 1.7 and 20 are at rest. The finished spring is hold fast by thev i slides '17 and 2(1 and fed forward during the revolution of the dish from 130 to 180 dei green, till the spring; is situated above the guide 7,? (we Fig. (1;).

From l -0 to 21GB degrees both the slides 17 and 20 are :Ll. raw-Ht, as will he soon fronji the Fig. 7, in which i215 llr-eignolo 0 can: ring 223 degrees the slide 17 is somewhat advanced Whermis the slide 21' moves backward. The spring is released from the slides undtiilien up by the spreading peg 73 of the guide 72, from which the spring: will be conveyed by an arrangement us fully described and illustrated in my aforementioned co-pending aplicntion. The finished spring is designated liy 74 in the drawings, see Figs. l0 and. l6. The slide "30 is at rest from 250 to 300 degrees nnd is withdrawn due to the arrangement of the wing 33 from 3'00 to 360 degrees. lhe withdrmvel of the slide 20 as taking place from 220 to Bill) degrees is eilectcd by means of the rising face i if the projection 21 (see Fig. 4-), which interferes with the face 31 of {he nognn-nlnl rim 2?}. From .220 to 236i) degrees the irle ut rest and now both slides 17 and .30 are in the position for bonding a new spring.

Ail erthe in ertion of the spring 74 info the part 1.6 liil'l place, the conveyor disk 2 is rotated by moons of the pawl 5 which is operated by moons of the [UL 6 and the angle lever 9, 10. The short arm 10 ofthelatter is hearing against the can]. disk 11 and subjected when the letter is rotated, to a. swinging motion. Having thue fully described the nature of my invention, what I desire to secure by Lettere Potent of the United States is:-

\ bending, of salt 1. A wire spring catch bending and delivery device for press button making machines, com rising a Wire feeding and cuttlng Ineo anism, separately movable die-slides receiving the out off Wire lengths, said di'eslides being arranged with a space between pins adapted to be moved into said space and counting with said slides to produce an initial hondin of the cut off wire, hammers meeting Wit 1 said vine and slides to finish the lwires and means for moving said slides with the bent wire into position for delivery to the button blank, substantielly as described.

2. A wire spring catch bending and deliv- 3 my device for press button maldng machines, comprising Wire feeding and cuttlng mechanism, two separately movable slides huvin meeting; che fnoes between which the out 0 wire is led. pine movable into the space between said (he and adapted to coact with one of said slides to produce the primary bending up of the wire endesubstantially at right angles to the center part, two hammers simultaneously eo-ectin with the pins to double up the wire at t ie beht up arts, a. crescent shaped member Within said ent up ends and GU-tIUlllllg with one of the die-slides to curve the center part of the cut oil wire and means for movin said slides together to the delivery point, W are said Wire is delivered to the button blank in the manner set forth.

3. In. a device of the character described, the combination of u wire cutting device, two superimposed die slides adopted to receive the cut oil wire lengths from said cutting device, e plurulil. of pins mounted to co- 0 ernte with said slides, two'hninmers adept e( to operate simultaneously upon the wires held by said slides and pins and from opposite sides of the slides, and mechanism for op; erating said wire cutting device slides and hammers, substnntiallv as set forth.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

AUGUST PRYM.

Witnesses ALVESTO S. HoeUE, AUGUST Feature. 

